SB20260925100 - Improper Validation of Specified Quantity in Input in Linux kernel ath ath11k driver

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Main Vulnerability Database SB20260925100

SB20260925100 - Improper Validation of Specified Quantity in Input in Linux kernel ath ath11k driver

Published: September 25, 2026

Security Bulletin ID SB20260925100
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Adjecent network
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Validation of Specified Quantity in Input (CVE-ID: CVE-2026-93271)

CWE-ID: CWE-1284 - Improper Validation of Specified Quantity in Input

CVSSv4: 5.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper range validation in ath11k_dp_rx_h_rate() when processing HT, VHT, or HE frames with a reported MCS above the corresponding mac80211 rate-space maximum. A remote attacker can send a wireless frame with an out-of-range reported MCS value to cause a denial of service.

The affected frame decodes correctly despite its reported MCS value exceeding the corresponding mac80211 rate space.


Remediation

Install update from vendor's website.

References